Abstract
We propose an ultracompact high-efficiency polarizing beam splitter that operates over a wide wavelength range and is based on a hybrid photonic crystal and a conventional waveguide structure. Within a small area (), this polarizing beam splitter separates TM- and TE-polarized modes into orthogonal output waveguides. Results of simulations with the two-dimensional finite-difference time-domain method show that 99.3% of TM-polarized light is deflected by the photonic crystal structure (with a 28.0-dB extinction ratio), whereas 99.0% of TE-polarized light propagates through the structure (with a 32.2-dB extinction ratio). Wave vector diagrams are employed to explain the operation of a polarizing beam splitter. Tolerance analysis reveals a large tolerance to fabrication errors.
© 2003 Optical Society of America
Full Article | PDF ArticleMore Like This
Lijun Wu, M. Mazilu, J.-F. Gallet, T. F. Krauss, A. Jugessur, and R. M. De La Rue
Opt. Lett. 29(14) 1620-1622 (2004)
Gregory P. Nordin, Seunghyun Kim, Jingbo Cai, and Jianhua Jiang
Opt. Express 10(23) 1334-1341 (2002)
D. T. Zhao, H. Zhou, Z. M. Jiang, Y. L. Fan, and Xun Wang
Opt. Lett. 28(10) 843-845 (2003)